Patents by Inventor Criseida González

Criseida González has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Spectacle lenses incorporating atoric surfaces
    Patent number: 7111937
    Abstract: An atoric surface is formed such that the surface coordinate lines are parallels with the shape of off-set curves of the trajectory curve of a swept surface, and meridians with the shape of the section curve of such swept surface. The lines of curvature of the surface coincide with the coordinate lines, so that the surface cylinder axis at any point P of the atoric surface is tangent to one of the two coordinate lines that passes through P. Atoric surfaces with lines of curvature in the form of meridian and parallel curves are highly suitable for astigmatic surfaces in spectacle lens design. The atoric surface design methodology provided herein is used to generate a broad range of surfaces from this class, thereby providing substantial flexibility over prior methods.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: September 26, 2006
    Assignee: Augen Opticos SA de CV
    Inventors: Enrique Landgrave, Antonio Villalobos, Criseida González
  • Spectacle lenses incorporating atoric surfaces
    Publication number: 20060132708
    Abstract: An atoric surface is formed such that the surface coordinate lines are parallels with the shape of off-set curves of the trajectory curve of a swept surface, and meridians with the shape of the section curve of such swept surface. The lines of curvature of the surface coincide with the coordinate lines, so that the surface cylinder axis at any point P of the atoric surface is tangent to one of the two coordinate lines that passes through P. Atoric surfaces with lines of curvature in the form of meridian and parallel curves are highly suitable for astigmatic surfaces in spectacle lens design. The atoric surface design methodology provided herein is used to generate a broad range of surfaces from this class, thereby providing substantial flexibility over prior methods.
    Type: Application
    Filed: December 16, 2004
    Publication date: June 22, 2006
    Inventors: Enrique Landgrave, Antonio Villalobos, Criseida Gonzalez